Hello,Not easy.You can block standard VPN ports for PPTP, IPSEC, L2TPBut
if your user use the version PRO, the VPN can be configured to use
SSL.If you block DNS names with words liek avast or VPN , there is an
option in Avast Secure Line (VPN) to use...
Hi Paul If you find nothing in the log, you can use packet captures, on
WAN interface, with a filter on forwarders. Do you see outgoing DNS
requests ? and incoming responses ? diagnose debug flow with filter.
